ADSM-L

Re: %Util vs %Migr

1998-12-18 08:39:46
Subject: Re: %Util vs %Migr
From: "Moir,Betsy" <betsy.moir AT ABBOTT DOT COM>
Date: Fri, 18 Dec 1998 07:39:46 -0600
Sorry -  I forgot to mention that we turned caching off.  That's why we
expected to see %UTIL and %MIGR figures to be about the same most of the
time.  Any other thoughts?




ADSM-L AT vm.marist DOT edu on 12/17/98 03:29:06 PM
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Subject: Re: %Util vs %Migr

Betsy--If I remember correctly if you are caching on your disk storage
pool, the cached files will show up in the %UTIL column.  They are
taking up space, but would not be migrated.

Jim Bohnsack
Raytheon Systems Co.

> ----------
> From:         Moir,Betsy[SMTP:betsy.moir AT ABBOTT DOT COM]
> Sent:         Thursday, December 17, 1998 3:00 PM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      %Util vs %Migr
>
> My ADSM VM server support person and I have been tracking our disk
> stgpool
> volume usage for the last week or so.  The figures we are seeing
> regularly
> are %UTIL is consistently about 32% higher than %Migr  (37% Util vs.
> 5%
> Migr).  We run with thresholds of 90% and 70% from 5am until 9pm at
> which
> time they drop down to 10% and 5% to encourage migration.  We are
> concerned
> that the %Util figures and %Migr figures do not run generally about
> the
> same.  We are currently running an audit volume on each of our volumes
> to see
> if there is any damage on any of the volumes that might be causing
> this
> discrepancy.  All volumes are varied online.
>
> Any suggestions or thoughts on this would be greatly appreciated.
>



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